MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Trade Name:      Cobalt Oxide                                                  Chemical Nature:          Metal Oxide

Formula:         CoO                                                           CAS #:                    1307-96-6





II      HAZARDOUS INGREDIENTS



                                                                                                 0.05 mg Co/m3

Cobalt Oxide %:           100                                                  OSHA PEL:





III     PHYSICAL DATA



                                                                                                        1935 oC

Boiling Point:            Decomposes                                           Melting Point:

Specific Gravity:         6.45                                                 Vapor Density (Air=1): No Data

                                                                               Vapor Pressure at 20 oC: Not applicable

Solubility:               Insoluble

Appearance and Odor:      Grayish-green powder, odorless.





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point (method used): Not applicable                                      Autoignition Temperature: No Data

Flammable Limits: Upper: N/A Lower: N/A



Extinguishing Media: If involved in a fire, use water, carbon dioxide, dry chemical extinguishing agents, dry sand, dry ground

dolomite.



Special Fire Fighting Procedures: Wear NIOSH/MSHA approved self-contained breathing apparatus, flame and chemical resistant

clothing; hats, boots and gloves. If without risk, remove material from fire area. Cool container with water from maximum distance.



Unusual Fire and Explosion Hazards: Can react vigorously with hydrogen peroxide and strong oxidizers.





V       HEALTH HAZARD INFORMATION



Threshold Limit Value: 0.05 mg Co/m3

Effects of Over Exposure: Has caused cancer in experimental animals. Locally, cobalt compounds can produce dermatitis. If

inhaled or ingested can cause hematologic, digestive and pulmonary disorders.



EMERGENCY AND FIRST AID PROCEDURES:



EYES: F lush with plenty of water for at least 15 minutes.

SKIN: Remove any contaminated clothing. Flush with soap and water for at least 15 minutes.

INHALATION: Seek prompt, competent medical attention.

INGESTION: Seek medical attention.

VI       REACTIVITY DATA



Stability: Stable



Incompatibility (Material to Avoid): Hydrogen peroxide and other strong oxidizers.

Conditions Contributing to Instability: Readily absorbs oxygen even at room temperature.



Hazardous Polymerization: Will not occur

Hazardous Decomposition Products: Reduced to cobalt by carbon or carbon monoxide.





VII      SPILL OR LEAK PROCEDURES



Steps to Be Taken If Spilled or Released: Wearing full protective clothing and respiratory protection, eliminate all sources of

ignition. Cover spill with dry sand or dry vermiculite, mix well and carefully transfer to a well-marked container. Close container

tightly. Submit or retain for disposal.



Waste Disposal Method: Consult State, Local, and Federal regulations for proper disposal of cobalt (II) chloride.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection (specify type): NIOSH/MSHA approved dust mask, for emergency. NIOSH/MSHA approved self-con-

tained breathing apparatus.



Ventilation: Local Exhaust: Fume hood

Protective Gloves: Rubber for all contact

Eye/Protection: Chemical safety glasses.



Other Protective Equipment/Work Practices: Lab coat and apron, flame and chemical resistant coveralls, eyewash capable of

sustained flushing, safety drench shower and hygienic facilities for washing.





IX       SPECIAL PRECAUTIONS



Precautionary Labeling: CAUTION: Experimental carcinogen. Toxic if inhaled or ingested.



Other Handling and Storage Conditions: Store in cool, dry well-ventilated area. Keep tightly sealed when not in use, read MSDS.

before using. Wash thoroughly after use.





Issued by:          S. Dierks

Issue Date:         April 1994